Portion of display screen with an icon



FIG. 1 is a front view of a portion of a display screen with an icon; and,

FIG. 2 is a second image thereof.

The outermost broken lines showing about the outer portions of the icons in FIGS. 1-2 are included for the purpose of illustrating a portion of a display screen, and form no part of the claimed design. The other broken lines in the figures show portions of the graphical user interface that form no part of the claimed design.

The grayscale shading in the figures represents a contrast of appearance.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-2. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM The ornamental design for a portion of a display screen with an icon, as shown and described. 